Portion of a watch housing



FIG. 1 is a perspective view of the portion of a watch housing showing my new design;

FIG. 2 is a top view of the portion of a watch housing shown in FIG. 1;

FIG. 3 is a left side elevational view of the portion of a watch housing shown in FIG. 1;

FIG. 4 is a right side elevational view of the portion of a watch housing shown in FIG. 1;

FIG. 5 is a front elevational view of the portion of a watch housing shown in FIG. 1; and,

FIG. 6 is a rear elevational view of the portion of a watch housing shown in FIG. 1.

The phantom lines showing a partial watch in FIGS. 1-6 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of a watch housing, as shown and described. 